On June 9, Anthropic released Claude Fable 5, the most capable model it has ever made, generally available. It also did something unusual: it shipped one model as two products, split not by capability but by a layer of safety classifiers. Fable 5 goes to the public. Its twin, Claude Mythos 5, the same underlying model with the cyber safeguards lifted, stays locked to a vetted group of cyber

ServiceNow has warned about a security incident in which unknown threat actors exploited a flaw to obtain deeper unauthorized access to susceptible instances. "On June 5, 2026, ServiceNow applied a security update to hosted customer instances," the company revealed in an advisory that requires customer access. "The update concerned a security issue that could allow an unauthenticated user, in

The anonymous security researcher going by the name Chaotic Eclipse (aka Nightmare-Eclipse) has released a proof-of-concept (PoC) exploit for yet another Microsoft Defender zero-day named RoguePlanet. "The exploit is a race condition, so it's a hit or miss," the researcher, who published the exploit under a new GitHub account, "MSNightmare" said. "I have managed to get a 100% success rate on

Cybersecurity researchers have flagged half a dozen vulnerabilities in protobuf.js, a JavaScript and TypeScript implementation of Protocol Buffers (Protobuf), that, if successfully exploited, could result in remote code execution (RCE) and denial-of-service (DoS) attacks. "In affected environments, a single malicious protobuf schema, descriptor, or crafted payload could be enough to trigger

Meta on Tuesday announced that it will use information shared by other businesses to personalize users' feed and responses from its artificial intelligence (AI) chatbot, expanding its scope beyond targeted ads. "Businesses often share information about people's activity on their sites with us to make ads more relevant," Meta said in a statement. "We already use this data - like games you play